Question

if f(x) = x+2/x²-3 and f'(0) =k then -3k =​

Answer 1

Answer:

-3

Step-by-step explanation:

f(x) = x+2/x²-3

=> f'(x) = 1 -4x^(-3)

=> f'(0) = 1 - 4×0^(-3) = k ( given)

=> k = 1

=> -3k = -3×1 = -3

answer = - 3

additional information

0^(-a) ≠ 1/0^a becouse 0^(±a) = 0 but

1/ 0^a= undefined